Most any Teacher Supply store will have bulletin board packs for transportation and signs should be easy to find. Many teachers of young children use a behavioral program called "Stop and Think" and it uses a traffic light as a prop. I have even seen 3-D ones made of plastic. Good luck with your baby. My grandson is now 5 months old, has 2 teeth and thinks he should be able to walk already!

Things change quickly with a baby. I wanted bright and colorful so all these subdued pastels have me ready for a nap. My nursery had nothing on the floor a toddler would want to climb on or pull over to be used to help climb. That shelving with the lamp on top--DANGER DANGER WILL ROGERS. What feeding accouterments? LOL I nursed all mine until they slept through the night. We had a dimmer switch on the overhead light--the only light in the room. At night feedings I could quietly in subdued light nurse and change baby with little or no noise or activity. Baby went right back to sleep.I had a soft sculpture (Noah's ark and several animals velcroed to the wall above baby's changing table. Language learning was important to me so baby and I did a lot of animal noises and descriptions of fur and size etc. They came on and off easily for baby as they grew and needed something to keep them busy. I too would have your chair kiddy corner. I hope it rocks. I second the no time/need for feet up but everyone is different. No cords, on drapes/shades/lamps. Safety first. Love the fun knobs idea for the dresser. I would find a shade and go with a valance. I know they aren't THE THING--but they are safest for baby. Before you blink drapes will be used to pull himself up. Drapery rods pull away fairly easily. Have fun, I so miss those years!!!

I definitely think grey is great long term- just change out the accessories. But I wouldn't do grey accessories with grey walls. it'll be too blah. Your taste reminded me a lot of the Emily & Merrit collection. Its geared a bit towards girls but there's a ton of great accessories that would work in your room. I adore their yellow and white pinstripe bedding, it would be great if you could find a crib option similar. curtains: https://www.pbteen.com/m/products/emily-and-merritt-circus-stripe-blackout-drape/?pkey=cemily-meritt-collection&isx=0.3.12536 or https://www.potterybarnkids.com/m/products/large-check-panel-boy/?pkey=cboy-window-panels-and-shades&isx=0.0 or https://www.potterybarnkids.com/m/products/stitched-border-panel/?pkey=cboy-window-panels-and-shades&isx=0.0 rugs: https://www.pbteen.com/m/products/emily-and-meritt-circus-stripe-rug/?pkey=cemily-meritt-collection&isx=0.3.10726 or https://www.pbteen.com/m/products/the-emily-and-meritt-tassel-rug/?pkey=cemily-meritt-collection&isx=0.3.11744 or https://www.potterybarnkids.com/m/products/mercer-rug-boy/?pkey=cboys-rugs&isx=0.0

Best wishes! Nursery are such fun. I would do bigger decals. The ones there now are too small. But, if you want to keep them, I like Is114’s idea of his name, but in letters proportioned to the wall.